I thought this idea would work in a teen or tween girl’s bedroom.  I think an accent wall like this and the rest of the walls white or maybe this idea above white painted wainscot or board and batten molding.  What I did was paint a base of semi-gloss black and then stencil the flowers with a self priming off-white.  What would I do different if I was going full scale?  I would use a bigger stencil or one that didn’t have as much detail because I had a bit of trouble with the white bleeding under the stencil.